WG 25" K7000 Cap Kit?

jackflack

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Does this monitor just need a Cap Kit?
 

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Possibly. Remember it's a 20 year old monitor.

I would have the picture tube tested first before doing anything though. There's a possibility your picture tube has problems.
 
The cap kit would probably do away with the lines. As for the green, it could be a cap kit, green drive pot, or a bad tube.
 
considering how scarce (I'm guessing) access to a tube rejuvenator is, I'd try adjusting the green out with the R G B bias pots first... I forget what K7000s have in the way of drives, I forget if they had Green drive pots, I'd start there first if so.

try knocking the Screen down on the flyback -- the lines are the retrace lines.

ALSO, try knocking the Contrast down. if you can't adjust the overwhelming green out, then I'd look at the tube being the culprit. I've seen a lot of monitors in the Monitor Repair section here with the retrace lines present that had shorts in the tubes lately.
 
Could be lots of things. Caps are generally something you replace if you actually plan on using the monitor - remember, they do fail with age. The picture tube could definitely be weak. If you don't have a rejuvinator, a quick test is to ground the base of the video output transistors one at a time, producing a solid colored screen. (disconnect the video input from the game board to get a blank raster first). You should be able to get a clean, non-fuzzy raster in the color you've grounded. If not, then that gun is probably weak.

-Ian
 
how do you do that? throw an alligator clip on the base and hook the other end to a ground?
 
wow i just learned something new.( with the gun transistor test)

Looking at the pic you posted, you have too much green or possibly shorted green gun, but the tubes so weak that appears why theyve cranked the brightness up too high( at the flyback)

id almost guarantee you have a bad tube. A test with a rejuve will tell you for sure.

cap kit-? eh who knows. It cant hurt. But i have a feeling that the tube is toasted.
 
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Yup - that would be it. And, the base of those output transistors is very conveniently the metal tab on top.

-Ian

SHIT! this must be what WG meant in the K7500 manual when white balancing to "ground" the video signal. well.... that was useful. god damn, lol
 
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